威い勢せいのいい

expression, i-adjective (yoi/ii class)

high-spirited; cheerful; assertive; vigorous

Describes a person or their manner as lively, confident, and full of energy; often used for someone who is boldly cheerful or aggressively upbeat.

• 彼かれはいつも威い勢せいのいい声こえで挨あい拶さつする。

  He always greets people in a cheerful, vigorous voice.

• 威い勢せいのいい掛かけ声ごえとともに、祭まつりが始はじまった。

  The festival began with a lively, spirited shout.